You don't really like to check 3bet stats at all or you have a reason for it not to post?
Of course we don't have huge sample but it would still give a small overview how the guy play with his 3bets. Without it I'd just fold the flop cause his range hits a lot such a flop and many Kx hands in his range. Nor I doubt that you will have much beat on the river, if he really wanted to bluff he could easily have done it with 2nd barreling.